1 /**********************************************************
2  * Copyright 2009-2011 VMware, Inc. All rights reserved.
3  *
4  * Permission is hereby granted, free of charge, to any person
5  * obtaining a copy of this software and associated documentation
6  * files (the "Software"), to deal in the Software without
7  * restriction, including without limitation the rights to use, copy,
8  * modify, merge, publish, distribute, sublicense, and/or sell copies
9  * of the Software, and to permit persons to whom the Software is
10  * furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be
13  * included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  *
24  *********************************************************
25  * Authors:
26  * Zack Rusin <zackr-at-vmware-dot-com>
27  */
28 
29 #include "xa_context.h"
30 #include "xa_priv.h"
31 #include <math.h>
32 #include "cso_cache/cso_context.h"
33 #include "util/u_inlines.h"
34 #include "util/u_sampler.h"
35 #include "util/u_draw_quad.h"
36 
37 #define floatsEqual(x, y) (fabsf(x - y) <= 0.00001f * MIN2(fabsf(x), fabsf(y)))
38 #define floatIsZero(x) (floatsEqual((x) + 1, 1))
39 
40 #define NUM_COMPONENTS 4
41 
42 void
43 
44 
45 renderer_set_constants(struct xa_context *r,
46 		       int shader_type, const float *params, int param_bytes);
47 
48 static inline boolean
is_affine(const float * matrix)49 is_affine(const float *matrix)
50 {
51     return floatIsZero(matrix[2]) && floatIsZero(matrix[5])
52 	&& floatsEqual(matrix[8], 1);
53 }
54 
55 static inline void
map_point(const float * mat,float x,float y,float * out_x,float * out_y)56 map_point(const float *mat, float x, float y, float *out_x, float *out_y)
57 {
58     if (!mat) {
59 	*out_x = x;
60 	*out_y = y;
61 	return;
62     }
63 
64     *out_x = mat[0] * x + mat[3] * y + mat[6];
65     *out_y = mat[1] * x + mat[4] * y + mat[7];
66     if (!is_affine(mat)) {
67 	float w = 1 / (mat[2] * x + mat[5] * y + mat[8]);
68 
69 	*out_x *= w;
70 	*out_y *= w;
71     }
72 }
73 
74 static inline void
renderer_draw(struct xa_context * r)75 renderer_draw(struct xa_context *r)
76 {
77     int num_verts = r->buffer_size / (r->attrs_per_vertex * NUM_COMPONENTS);
78 
79     if (!r->buffer_size)
80 	return;
81 
82     if (!r->scissor_valid) {
83 	r->scissor.minx = 0;
84 	r->scissor.miny = 0;
85 	r->scissor.maxx = r->dst->tex->width0;
86 	r->scissor.maxy = r->dst->tex->height0;
87     }
88 
89     r->pipe->set_scissor_states(r->pipe, 0, 1, &r->scissor);
90 
91     struct cso_velems_state velems;
92     velems.count = r->attrs_per_vertex;
93     memcpy(velems.velems, r->velems, sizeof(r->velems[0]) * velems.count);
94 
95     cso_set_vertex_elements(r->cso, &velems);
96     util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS,
97                                  num_verts,	/* verts */
98                                  r->attrs_per_vertex);	/* attribs/vert */
99     r->buffer_size = 0;
100 
101     xa_scissor_reset(r);
102 }
103 
104 static inline void
renderer_draw_conditional(struct xa_context * r,int next_batch)105 renderer_draw_conditional(struct xa_context *r, int next_batch)
106 {
107     if (r->buffer_size + next_batch >= XA_VB_SIZE ||
108 	(next_batch == 0 && r->buffer_size)) {
109 	renderer_draw(r);
110     }
111 }
112 
113 void
renderer_init_state(struct xa_context * r)114 renderer_init_state(struct xa_context *r)
115 {
116     struct pipe_depth_stencil_alpha_state dsa;
117     struct pipe_rasterizer_state raster;
118     unsigned i;
119 
120     /* set common initial clip state */
121     memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state));
122     cso_set_depth_stencil_alpha(r->cso, &dsa);
123 
124     /* XXX: move to renderer_init_state? */
125     memset(&raster, 0, sizeof(struct pipe_rasterizer_state));
126     raster.half_pixel_center = 1;
127     raster.bottom_edge_rule = 1;
128     raster.depth_clip_near = 1;
129     raster.depth_clip_far = 1;
130     raster.scissor = 1;
131     cso_set_rasterizer(r->cso, &raster);
132 
133     /* vertex elements state */
134     memset(&r->velems[0], 0, sizeof(r->velems[0]) * 3);
135     for (i = 0; i < 3; i++) {
136 	r->velems[i].src_offset = i * 4 * sizeof(float);
137 	r->velems[i].instance_divisor = 0;
138 	r->velems[i].vertex_buffer_index = 0;
139 	r->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
140     }
141 }
142 
143 static inline void
add_vertex_none(struct xa_context * r,float x,float y)144 add_vertex_none(struct xa_context *r, float x, float y)
145 {
146     float *vertex = r->buffer + r->buffer_size;
147 
148     vertex[0] = x;
149     vertex[1] = y;
150     vertex[2] = 0.f;		/*z */
151     vertex[3] = 1.f;		/*w */
152 
153     r->buffer_size += 4;
154 }
155 
156 static inline void
add_vertex_1tex(struct xa_context * r,float x,float y,float s,float t)157 add_vertex_1tex(struct xa_context *r, float x, float y, float s, float t)
158 {
159     float *vertex = r->buffer + r->buffer_size;
160 
161     vertex[0] = x;
162     vertex[1] = y;
163     vertex[2] = 0.f;		/*z */
164     vertex[3] = 1.f;		/*w */
165 
166     vertex[4] = s;		/*s */
167     vertex[5] = t;		/*t */
168     vertex[6] = 0.f;		/*r */
169     vertex[7] = 1.f;		/*q */
170 
171     r->buffer_size += 8;
172 }
173 
174 static inline void
add_vertex_2tex(struct xa_context * r,float x,float y,float s0,float t0,float s1,float t1)175 add_vertex_2tex(struct xa_context *r,
176 		float x, float y, float s0, float t0, float s1, float t1)
177 {
178     float *vertex = r->buffer + r->buffer_size;
179 
180     vertex[0] = x;
181     vertex[1] = y;
182     vertex[2] = 0.f;		/*z */
183     vertex[3] = 1.f;		/*w */
184 
185     vertex[4] = s0;		/*s */
186     vertex[5] = t0;		/*t */
187     vertex[6] = 0.f;		/*r */
188     vertex[7] = 1.f;		/*q */
189 
190     vertex[8] = s1;		/*s */
191     vertex[9] = t1;		/*t */
192     vertex[10] = 0.f;		/*r */
193     vertex[11] = 1.f;		/*q */
194 
195     r->buffer_size += 12;
196 }
197 
198 static void
compute_src_coords(float sx,float sy,const struct pipe_resource * src,const float * src_matrix,float width,float height,float tc0[2],float tc1[2],float tc2[2],float tc3[2])199 compute_src_coords(float sx, float sy, const struct pipe_resource *src,
200                    const float *src_matrix,
201                    float width, float height,
202                    float tc0[2], float tc1[2], float tc2[2], float tc3[2])
203 {
204     tc0[0] = sx;
205     tc0[1] = sy;
206     tc1[0] = sx + width;
207     tc1[1] = sy;
208     tc2[0] = sx + width;
209     tc2[1] = sy + height;
210     tc3[0] = sx;
211     tc3[1] = sy + height;
212 
213     if (src_matrix) {
214 	map_point(src_matrix, tc0[0], tc0[1], &tc0[0], &tc0[1]);
215 	map_point(src_matrix, tc1[0], tc1[1], &tc1[0], &tc1[1]);
216 	map_point(src_matrix, tc2[0], tc2[1], &tc2[0], &tc2[1]);
217 	map_point(src_matrix, tc3[0], tc3[1], &tc3[0], &tc3[1]);
218     }
219 
220     tc0[0] /= src->width0;
221     tc1[0] /= src->width0;
222     tc2[0] /= src->width0;
223     tc3[0] /= src->width0;
224     tc0[1] /= src->height0;
225     tc1[1] /= src->height0;
226     tc2[1] /= src->height0;
227     tc3[1] /= src->height0;
228 }
229 
230 static void
add_vertex_data1(struct xa_context * r,float srcX,float srcY,float dstX,float dstY,float width,float height,const struct pipe_resource * src,const float * src_matrix)231 add_vertex_data1(struct xa_context *r,
232                  float srcX, float srcY,  float dstX, float dstY,
233                  float width, float height,
234                  const struct pipe_resource *src, const float *src_matrix)
235 {
236     float tc0[2], tc1[2], tc2[2], tc3[2];
237 
238     compute_src_coords(srcX, srcY, src, src_matrix, width, height,
239                        tc0, tc1, tc2, tc3);
240     /* 1st vertex */
241     add_vertex_1tex(r, dstX, dstY, tc0[0], tc0[1]);
242     /* 2nd vertex */
243     add_vertex_1tex(r, dstX + width, dstY, tc1[0], tc1[1]);
244     /* 3rd vertex */
245     add_vertex_1tex(r, dstX + width, dstY + height, tc2[0], tc2[1]);
246     /* 4th vertex */
247     add_vertex_1tex(r, dstX, dstY + height, tc3[0], tc3[1]);
248 }
249 
250 static void
add_vertex_data2(struct xa_context * r,float srcX,float srcY,float maskX,float maskY,float dstX,float dstY,float width,float height,struct pipe_resource * src,struct pipe_resource * mask,const float * src_matrix,const float * mask_matrix)251 add_vertex_data2(struct xa_context *r,
252                  float srcX, float srcY, float maskX, float maskY,
253                  float dstX, float dstY, float width, float height,
254                  struct pipe_resource *src,
255                  struct pipe_resource *mask,
256                  const float *src_matrix, const float *mask_matrix)
257 {
258     float spt0[2], spt1[2], spt2[2], spt3[2];
259     float mpt0[2], mpt1[2], mpt2[2], mpt3[2];
260 
261     compute_src_coords(srcX, srcY, src, src_matrix, width, height,
262                        spt0, spt1, spt2, spt3);
263     compute_src_coords(maskX, maskY, mask, mask_matrix, width, height,
264                        mpt0, mpt1, mpt2, mpt3);
265 
266     /* 1st vertex */
267     add_vertex_2tex(r, dstX, dstY,
268 		    spt0[0], spt0[1], mpt0[0], mpt0[1]);
269     /* 2nd vertex */
270     add_vertex_2tex(r, dstX + width, dstY,
271 		    spt1[0], spt1[1], mpt1[0], mpt1[1]);
272     /* 3rd vertex */
273     add_vertex_2tex(r, dstX + width, dstY + height,
274 		    spt2[0], spt2[1], mpt2[0], mpt2[1]);
275     /* 4th vertex */
276     add_vertex_2tex(r, dstX, dstY + height,
277 		    spt3[0], spt3[1], mpt3[0], mpt3[1]);
278 }
279 
280 static void
setup_vertex_data_yuv(struct xa_context * r,float srcX,float srcY,float srcW,float srcH,float dstX,float dstY,float dstW,float dstH,struct xa_surface * srf[])281 setup_vertex_data_yuv(struct xa_context *r,
282 		      float srcX,
283 		      float srcY,
284 		      float srcW,
285 		      float srcH,
286 		      float dstX,
287 		      float dstY,
288 		      float dstW, float dstH, struct xa_surface *srf[])
289 {
290     float s0, t0, s1, t1;
291     float spt0[2], spt1[2];
292     struct pipe_resource *tex;
293 
294     spt0[0] = srcX;
295     spt0[1] = srcY;
296     spt1[0] = srcX + srcW;
297     spt1[1] = srcY + srcH;
298 
299     tex = srf[0]->tex;
300     s0 = spt0[0] / tex->width0;
301     t0 = spt0[1] / tex->height0;
302     s1 = spt1[0] / tex->width0;
303     t1 = spt1[1] / tex->height0;
304 
305     /* 1st vertex */
306     add_vertex_1tex(r, dstX, dstY, s0, t0);
307     /* 2nd vertex */
308     add_vertex_1tex(r, dstX + dstW, dstY, s1, t0);
309     /* 3rd vertex */
310     add_vertex_1tex(r, dstX + dstW, dstY + dstH, s1, t1);
311     /* 4th vertex */
312     add_vertex_1tex(r, dstX, dstY + dstH, s0, t1);
313 }
314 
315 /* Set up framebuffer, viewport and vertex shader constant buffer
316  * state for a particular destinaton surface.  In all our rendering,
317  * these concepts are linked.
318  */
319 void
renderer_bind_destination(struct xa_context * r,struct pipe_surface * surface)320 renderer_bind_destination(struct xa_context *r,
321 			  struct pipe_surface *surface)
322 {
323     int width = surface->width;
324     int height = surface->height;
325 
326     struct pipe_framebuffer_state fb;
327     struct pipe_viewport_state viewport;
328 
329     xa_scissor_reset(r);
330 
331     /* Framebuffer uses actual surface width/height
332      */
333     memset(&fb, 0, sizeof fb);
334     fb.width = surface->width;
335     fb.height = surface->height;
336     fb.nr_cbufs = 1;
337     fb.cbufs[0] = surface;
338     fb.zsbuf = 0;
339 
340     /* Viewport just touches the bit we're interested in:
341      */
342     viewport.scale[0] = width / 2.f;
343     viewport.scale[1] = height / 2.f;
344     viewport.scale[2] = 1.0;
345     viewport.translate[0] = width / 2.f;
346     viewport.translate[1] = height / 2.f;
347     viewport.translate[2] = 0.0;
348 
349     /* Constant buffer set up to match viewport dimensions:
350      */
351     if (r->fb_width != width || r->fb_height != height) {
352 	float vs_consts[8] = {
353 	    2.f / width, 2.f / height, 1, 1,
354 	    -1, -1, 0, 0
355 	};
356 
357 	r->fb_width = width;
358 	r->fb_height = height;
359 
360 	renderer_set_constants(r, PIPE_SHADER_VERTEX,
361 			       vs_consts, sizeof vs_consts);
362     }
363 
364     cso_set_framebuffer(r->cso, &fb);
365     cso_set_viewport(r->cso, &viewport);
366 }
367 
368 void
renderer_set_constants(struct xa_context * r,int shader_type,const float * params,int param_bytes)369 renderer_set_constants(struct xa_context *r,
370 		       int shader_type, const float *params, int param_bytes)
371 {
372     struct pipe_resource **cbuf =
373 	(shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer :
374 	&r->fs_const_buffer;
375 
376     pipe_resource_reference(cbuf, NULL);
377     *cbuf = pipe_buffer_create_const0(r->pipe->screen,
378                                       PIPE_BIND_CONSTANT_BUFFER,
379                                       PIPE_USAGE_DEFAULT,
380                                       param_bytes);
381 
382     if (*cbuf) {
383 	pipe_buffer_write(r->pipe, *cbuf, 0, param_bytes, params);
384     }
385     pipe_set_constant_buffer(r->pipe, shader_type, 0, *cbuf);
386 }
387 
388 void
renderer_copy_prepare(struct xa_context * r,struct pipe_surface * dst_surface,struct pipe_resource * src_texture,const enum xa_formats src_xa_format,const enum xa_formats dst_xa_format)389 renderer_copy_prepare(struct xa_context *r,
390 		      struct pipe_surface *dst_surface,
391 		      struct pipe_resource *src_texture,
392 		      const enum xa_formats src_xa_format,
393 		      const enum xa_formats dst_xa_format)
394 {
395     struct pipe_context *pipe = r->pipe;
396     struct pipe_screen *screen = pipe->screen;
397     struct xa_shader shader;
398     uint32_t fs_traits = FS_COMPOSITE;
399 
400     assert(screen->is_format_supported(screen, dst_surface->format,
401 				       PIPE_TEXTURE_2D, 0, 0,
402 				       PIPE_BIND_RENDER_TARGET));
403     (void)screen;
404 
405     renderer_bind_destination(r, dst_surface);
406 
407     /* set misc state we care about */
408     {
409 	struct pipe_blend_state blend;
410 
411 	memset(&blend, 0, sizeof(blend));
412 	blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
413 	blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
414 	blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
415 	blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
416 	blend.rt[0].colormask = PIPE_MASK_RGBA;
417 	cso_set_blend(r->cso, &blend);
418     }
419 
420     /* sampler */
421     {
422 	struct pipe_sampler_state sampler;
423         const struct pipe_sampler_state *p_sampler = &sampler;
424 
425 	memset(&sampler, 0, sizeof(sampler));
426 	sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
427 	sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
428 	sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
429 	sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
430 	sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
431 	sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
432 	sampler.normalized_coords = 1;
433         cso_set_samplers(r->cso, PIPE_SHADER_FRAGMENT, 1, &p_sampler);
434         r->num_bound_samplers = 1;
435     }
436 
437     /* texture/sampler view */
438     {
439 	struct pipe_sampler_view templ;
440 	struct pipe_sampler_view *src_view;
441 
442 	u_sampler_view_default_template(&templ,
443 					src_texture, src_texture->format);
444 	src_view = pipe->create_sampler_view(pipe, src_texture, &templ);
445 	cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, 1, &src_view);
446 	pipe_sampler_view_reference(&src_view, NULL);
447     }
448 
449     /* shaders */
450     if (src_texture->format == PIPE_FORMAT_L8_UNORM ||
451         src_texture->format == PIPE_FORMAT_R8_UNORM)
452 	fs_traits |= FS_SRC_LUMINANCE;
453     if (dst_surface->format == PIPE_FORMAT_L8_UNORM ||
454         dst_surface->format == PIPE_FORMAT_R8_UNORM)
455 	fs_traits |= FS_DST_LUMINANCE;
456     if (xa_format_a(dst_xa_format) != 0 &&
457 	xa_format_a(src_xa_format) == 0)
458 	fs_traits |= FS_SRC_SET_ALPHA;
459 
460     shader = xa_shaders_get(r->shaders, VS_COMPOSITE, fs_traits);
461     cso_set_vertex_shader_handle(r->cso, shader.vs);
462     cso_set_fragment_shader_handle(r->cso, shader.fs);
463 
464     r->buffer_size = 0;
465     r->attrs_per_vertex = 2;
466 }
467 
468 void
renderer_copy(struct xa_context * r,int dx,int dy,int sx,int sy,int width,int height,float src_width,float src_height)469 renderer_copy(struct xa_context *r,
470 	      int dx,
471 	      int dy,
472 	      int sx,
473 	      int sy,
474 	      int width, int height, float src_width, float src_height)
475 {
476     float s0, t0, s1, t1;
477     float x0, y0, x1, y1;
478 
479     /* XXX: could put the texcoord scaling calculation into the vertex
480      * shader.
481      */
482     s0 = sx / src_width;
483     s1 = (sx + width) / src_width;
484     t0 = sy / src_height;
485     t1 = (sy + height) / src_height;
486 
487     x0 = dx;
488     x1 = dx + width;
489     y0 = dy;
490     y1 = dy + height;
491 
492     /* draw quad */
493     renderer_draw_conditional(r, 4 * 8);
494     add_vertex_1tex(r, x0, y0, s0, t0);
495     add_vertex_1tex(r, x1, y0, s1, t0);
496     add_vertex_1tex(r, x1, y1, s1, t1);
497     add_vertex_1tex(r, x0, y1, s0, t1);
498 }
499 
500 void
renderer_draw_yuv(struct xa_context * r,float src_x,float src_y,float src_w,float src_h,int dst_x,int dst_y,int dst_w,int dst_h,struct xa_surface * srf[])501 renderer_draw_yuv(struct xa_context *r,
502 		  float src_x,
503 		  float src_y,
504 		  float src_w,
505 		  float src_h,
506 		  int dst_x,
507 		  int dst_y, int dst_w, int dst_h, struct xa_surface *srf[])
508 {
509    const int num_attribs = 2;	/*pos + tex coord */
510 
511    setup_vertex_data_yuv(r,
512                          src_x, src_y, src_w, src_h,
513                          dst_x, dst_y, dst_w, dst_h, srf);
514 
515    if (!r->scissor_valid) {
516        r->scissor.minx = 0;
517        r->scissor.miny = 0;
518        r->scissor.maxx = r->dst->tex->width0;
519        r->scissor.maxy = r->dst->tex->height0;
520    }
521 
522    r->pipe->set_scissor_states(r->pipe, 0, 1, &r->scissor);
523 
524    struct cso_velems_state velems;
525    velems.count = num_attribs;
526    memcpy(velems.velems, r->velems, sizeof(r->velems[0]) * velems.count);
527 
528    cso_set_vertex_elements(r->cso, &velems);
529    util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS,
530                                 4,	/* verts */
531                                 num_attribs);	/* attribs/vert */
532    r->buffer_size = 0;
533 
534    xa_scissor_reset(r);
535 }
536 
537 void
renderer_begin_solid(struct xa_context * r)538 renderer_begin_solid(struct xa_context *r)
539 {
540     r->buffer_size = 0;
541     r->attrs_per_vertex = 1;
542     renderer_set_constants(r, PIPE_SHADER_FRAGMENT, r->solid_color,
543                            4 * sizeof(float));
544 }
545 
546 void
renderer_solid(struct xa_context * r,int x0,int y0,int x1,int y1)547 renderer_solid(struct xa_context *r,
548 	       int x0, int y0, int x1, int y1)
549 {
550     /*
551      * debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
552      * x0, y0, x1, y1, color[0], color[1], color[2], color[3]); */
553 
554     renderer_draw_conditional(r, 4 * 4);
555 
556     /* 1st vertex */
557     add_vertex_none(r, x0, y0);
558     /* 2nd vertex */
559     add_vertex_none(r, x1, y0);
560     /* 3rd vertex */
561     add_vertex_none(r, x1, y1);
562     /* 4th vertex */
563     add_vertex_none(r, x0, y1);
564 }
565 
566 void
renderer_draw_flush(struct xa_context * r)567 renderer_draw_flush(struct xa_context *r)
568 {
569     renderer_draw_conditional(r, 0);
570 }
571 
572 void
renderer_begin_textures(struct xa_context * r)573 renderer_begin_textures(struct xa_context *r)
574 {
575     r->attrs_per_vertex = 1 + r->num_bound_samplers;
576     r->buffer_size = 0;
577     if (r->has_solid_src || r->has_solid_mask)
578        renderer_set_constants(r, PIPE_SHADER_FRAGMENT, r->solid_color,
579                               4 * sizeof(float));
580 }
581 
582 void
renderer_texture(struct xa_context * r,int * pos,int width,int height,const float * src_matrix,const float * mask_matrix)583 renderer_texture(struct xa_context *r,
584 		 int *pos,
585 		 int width, int height,
586 		 const float *src_matrix,
587 		 const float *mask_matrix)
588 {
589     struct pipe_sampler_view **sampler_view = r->bound_sampler_views;
590 
591 #if 0
592     if (src_matrix) {
593 	debug_printf("src_matrix = \n");
594 	debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]);
595 	debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]);
596 	debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]);
597     }
598     if (mask_matrix) {
599 	debug_printf("mask_matrix = \n");
600 	debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]);
601 	debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]);
602 	debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]);
603     }
604 #endif
605 
606     switch(r->attrs_per_vertex) {
607     case 2:
608 	renderer_draw_conditional(r, 4 * 8);
609         if (!r->has_solid_src) {
610            add_vertex_data1(r,
611                             pos[0], pos[1], /* src */
612                             pos[4], pos[5], /* dst */
613                             width, height,
614                             sampler_view[0]->texture, src_matrix);
615         } else {
616            add_vertex_data1(r,
617                             pos[2], pos[3], /* mask */
618                             pos[4], pos[5], /* dst */
619                             width, height,
620                             sampler_view[0]->texture, mask_matrix);
621         }
622 	break;
623     case 3:
624 	renderer_draw_conditional(r, 4 * 12);
625 	add_vertex_data2(r,
626 			 pos[0], pos[1], /* src */
627 			 pos[2], pos[3], /* mask */
628 			 pos[4], pos[5], /* dst */
629 			 width, height,
630 			 sampler_view[0]->texture, sampler_view[1]->texture,
631 			 src_matrix, mask_matrix);
632 	break;
633     default:
634 	break;
635     }
636 }
637